Extended Data Fig. 4: OTU 1037355 displays reproducible trends in an independent experiment.

a, Timeline of the watering regimes followed by control (WC) and drought-stressed (DS) plants. Horizontal lines represent the watering status during the experiment: solid segments indicate periods of constant irrigation while dotted segments indicate periods of suspended irrigation. Upside down triangles mark each of 5 collection time points. b, Ranked relative abundances of individual community members throughout time. Each ribbon represents a single OTU in the community: for each time point, width indicates its relative abundance while the position across the y axis indicates its rank within the community. The most abundant member of the semipersistent enrichment module, Streptomyces sp. (OTU ID: 1037355), is highlighted. In all panels, the vertical dotted lines delimit the periods of suspended irrigation in each of the drought treatments. c,d, Beta-diversity patterns in the rhizosphere (c) and endosphere (d) communities. In both cases, the y axis displays the position of each sample across the first principal coordinate (PCo) from a weighted UniFrac PCo analysis and the x axis displays the age of the plant at the moment of sample collection. In all panels, the vertical dotted lines delimit the periods of suspended irrigation for the drought treatment.